Paraquat - Herbicide

Paraquat herbicide
CAS No: 4685-14-7(paraquat cation) 1910-42-5(paraquat dichloride)
MF.: C12H14Cl2N2 / C12H14N2 [paraquat]
MW: 257.2 /186.3 [paraquat]
MP.: Decomposes at c. 340º C
VP.: <1 *10-2 mPa (25º C)
SG.: 1.24-1.26 (20º C)
Formulation type: 42TECH, 20%SL
Solubility.: In water c. 620 g/l (20º C). Practically insoluble in most organic solvents.
Stability: Stable in neutral and acidic media, but readily hydrolysed in alkaline media.
/Photochemically decomposed by u. V, irradiation in aqueous solution.
Appearance: Colourless, hygroscopic crystals
Formulations: 20% SL, 24% SL
Packing: 200LT(Tech. ) 200, 1LT(Form. ) or as per clients' requirements
Toxicological information:
Acute dermal LD50 for rats >2000mg/kg
Purpose: Paraquat is absorbed by the foliage and to some extent translocated in the xylem. During photosynthesis a superoxid is generated which damages cell membranes and cytoplasm. Paraquart is one of the leading non-selective herbicides that is used in many crop situations such as burn-off treatments for weeds, stubble clearance or potato desiccation. It controls a wide spectrum of broad-leaved weeds and grasses and provides excellent residual activity.